Mario points out Cecilia and her husband as suspects. Braulio and Nora lose hope in the investigation. A discovery unearths the authorities' negligence.
The police receive an anonymous letter. Pizarro carries out his own investigation with the help of two associates and offers his services to the family.
After a woman disappears from her home, her husband alerts the police, a lawyer gets interested in the case, and her sister leads a search in the area.